Silk-thread-finishing machine.



PATENTED DEG. 17, 1907.

E. POHL. SILK THREAD FINISHING MACHINE.

APPLICATION IILED APB. 3,1907.

;E: v Tut INVENTOR A B w a J m W Q N M Jr MW q WITNESSE EDWARD POHL, OF PATERSQN, NEW JERSEY.

SILK-THREAD-FINISHING MACHINE.

Specification of Letters Patent.

. Patented Dec. 17, 1907.

Application filed April 3, 1907. Serial No. 366,097.

To all whom it may concern.

Be it known that I, EDWARD POHL, a subject of the Crown of Austria, and a resident of Paterson, county of Passaic, and State of New Jersey, have invented certain new and useful Improvements in Silk-Thread-Finishing Machines, of which the following is a specification, reference being had to the accompanying drawings, forming a parts thereof.

My invention relates to improvements in apparatus for lustering and finishing silk filaments by immersing them in a bath of suitable material in liquid form, and in then passing the threads over a heated contact surface. This heated contact surface usually comprises a long table having an upper smooth metallic surface which is heated by means of steam coils placed in juxtaposition to the under surface thereof, or in any other suitable way. This heated surface acts in a double capacity as a means for drying the filaments and as a means for ironing them, whereby a high luster is imparted thereto. In practice, however, it has been found that with such an apparatus the threads are polished to a greater extent upon one side than they are upon the other, and silk goods made u therefrom are apt to have a slightly mottle effect due to the fact that the lustered side of the filaments will sometimes appear on one side of the fabric and sometimes on the other. To overcome this, I have provided ironing devices for engaging the upper side of the threads as well as the lower sides thereof, and by this means I produce a lustered effect on both sides of the thread, thereby giving the finished goods an evener and more lustrous appearance. These ironing devices preferably comprise short heated contact surfaces, and are arranged to engage the silk filaments either before or after they have traveled over the main ironing table, or I may arrange them at both ends of the ironing table, so that they engage the said filaments both before and after they have been received thereby.

My invention also consists in certain novel details of construction and combination of parts as will be more fully pointed out hereinafter.

In order that my invention may be fully understood I will now describe an embodiment thereof, having reference to the accompanying drawings illustrating same, and will then point out the novel features in claims.

In the drawings: Figure 1 is a view in central vertical section showing an apparatus which embodies my invention, the same being illustrated somewhat diagrammatically. Fig. 2 is a detail view in horizontal transverse section, the plane of section being taken substantially upon the plane of the line 22 of Fig. 1.

The filaments 3 are arranged to be immersed in a bath 4 of suitable finishing material, passing thence over suitable wipers 5 to a heated table 6, the upper surface of which constitutes the heated contact surface. The filaments finally pass from the table to a winding apparatus shown at 7.

Between the bath 4 and the approach-end of the table 6, and in engagement with the upper side of the filaments 8, is an ironing member 8. This ironing member is heated by means of a steam pipe 9, or other suitable means, and, by engaging the upper surfaces of the threads, will tend to act as a finishing means auxiliary to the main finishing means comprised in the table 6. I have also shown an ironing member 10 arranged between the rear end of the table 6 and the winding means 7, which will also act as an auxiliary means to polish the upper side of the threads after they have been thoroughly finished 011 the under side by the steam table 6. The precise form of the ironing member is immaterial. The ironing member 10 is shown in the present drawings as being round, and the ironing member 8 as polygonal in cross section. Any desired cross-sectional form may be employed, the essential feature being the surface frictional contact of hot metal with the upper surface of the threads.

Because of the fact that the surface of the ironing means is apt to becomefouled and dirty after a time owing to a deposit thereon of material carried by thefilaments, I have provided means for applying a step by step movement thereto at intervals, so as to bring another surface into play after one surface has been employed for a predetermined length of time. In the present instance this means comprises gearing 11, a ratchet wheel 12, a pawl 13, an operating lever 14- carrying said pawl, a link 15 connected with the said operating lever, and a cam 16 engaging a fol lower roller carried by the said link. A

spring 17 tends to force the lever 14 and link 15 in one direction, while the cam 16 in its rotation will force the parts in the opposite direction against the said spring. The cam is designed to rotate continuously, and is so formed as to move the operating parts back slowly, while they will permit a rapid movement of the same after an interval to bring into play a new surface of the ironing member. The fouled surfaces may be cleaned from time to time as the member is rotated, so that there will always be a clean surface ahead of the surface in'use. This arrangement obviates the necessity of stopping the machine to clean the ironing member, which is, of course, a highly advantageous feature in carrying out the operation.

In order to cause the threads to properly engage the faces of the members 8 and 10, I have arranged other members 18 and 19 contiguous thereto, such members arranged beneath the threads and thus acting to support them and to prevent their sagging away from the faces of the members 8 and 10. I have shown the member 18 as revoluble as well as the member 8, and for the same reason. It will of course be understood that it is not absolutely essential that the members 8 or 18 be made to revolve, or even be permitted to revolve, but that it is a convenience for them to do so and a matter of economy in the operation of the machine. The members 10 and 19, or either of them, may be similarly made to revolve if desired. It will also be understood that I may use such auxiliary ironing means only in advance of the table or only at the rear thereof if I prefer, though preferably I employ them-at both places.

At 20 I have shown the preliminary drying and ironing member which I have heretofore employed for the purpose of saving the front end of the table from becoming fouled, such member forming, however, no part of the present invention, but being fully disclosed and claimed in U. S. Patent No. 808,402, issued to me on December 26th, 1905.

WVhat I claim is:

1. In a machine for finishing and lustering textile filaments, the combination with a bath for containing liquid in which the filaments are to be immersed, of a main heated contact surface over which the filaments are arranged to travel and by which they are dried and lustered, an auxiliary heated contact member for engaging the threads, and means for imparting step by step movements to the said member after predetermined periods of rest.

2. In a machine for finishing and lustering textile filaments, the combination with a bath for containing liquid in which the fila ments are to be immersed, of a main heated contact surface over which the filaments are arranged to travel and by which they are dried and lustered, an auxiliary heated member arranged between the said main heated contact surface and the bath, said member having surfaces for successive engagement with the threads, and means for imparting step by step movements to the said member so as to bring the several surfaces successively into operation, the said member remaining at rest between such step by step movements.

3. In a machine for finishing and lustering textile filaments, the combination with a bath for containing liquid in which the filaments are to be immersed, of a main heated contact surface over which the filaments are arranged to travel and by which they are dried and lustered, an auxiliary heated member having contact surfaces for engaging the portions of the threads opposite to those engaged by the main heated contact surface, and means for'imparting step by step movements to the said member between intervals of rest so as to bring the several said surfaces successively into operative position,

EDWARD POHL.

Witnesses:

D. HOWARD HAYWOOD, LYMAN S. ANDREWS, Jr. 

